First off Chris... Welcome to the forum!
Stocking numbers are all about your goals. What do you want from this pond? Most people with ponds in that size range tend to focus on growing larger sunfish(bluegills, redears) as opposed to bass. Growing large bass in a 0.6 acre pond generally means there aren't many bass, they're hard as heck to catch which leads to a lot of hours of not catching fish. However, focusing on growing large sunfish means lots of 8"-12" hungry bass and many nice sized sunfish. A very reasonable goal for a pond your size... As far as channel cats go, research them on here but I think you will find, most guys wish they didn't stock them to begin with or wished they had stocked a lot less of them. I would only stock them if you really want them and then only the number you will eat annually...
Oh yeah, stocking some fatheads now can't hurt... I'd wait til the pond is at least half full before stocking anything else. As far as when to stock different fish, let's see what your goals are first...
